A202695 The first of a set of three triangles constructed by the same rule as A202692-A202694, but where the top entries in the three triangles are 1,0,0 respectively.

1, 0, 1, 5, 5, 4, 0, 5, 10, 14, 205, 205, 200, 190, 176

Offset

1,4

Links

Table of n, a(n) for n=1..15.

M. Josuat-Verges, J.-C. Novelli and J.-Y. Thibon, The algebraic combinatorics of snakes, arXiv preprint arXiv:1110.5272, 2011

Example

The triangle begins:
1
0 1
5 5 4
0 5 10 14
205 205 200 190 176
...
The three triangles together:
1                      0                      0
0 1                    1 1                    1 1
5 5 4                  4 3 2                  2 1 0
0 5 10 14              14 18 21 23            23 25 26 26
205 205 200 190 176    176 162 144 123 100    100 77 52 26 0

Crossrefs

The three triangles are A202695, A202696, A202697.

Sequence in context: A365078 A175505 A158274 * A110986 A193721 A019927

Adjacent sequences: A202692 A202693 A202694 * A202696 A202697 A202698

Keyword

nonn,tabl,more

Author

N. J. A. Sloane, Dec 23 2011

Status

approved